CN113652965B - Stay cable space positioning tensioning construction system and tensioning construction method - Google Patents
Stay cable space positioning tensioning construction system and tensioning construction method Download PDFInfo
- Publication number
- CN113652965B CN113652965B CN202110697511.3A CN202110697511A CN113652965B CN 113652965 B CN113652965 B CN 113652965B CN 202110697511 A CN202110697511 A CN 202110697511A CN 113652965 B CN113652965 B CN 113652965B
- Authority
- CN
- China
- Prior art keywords
- cable
- tensioning
- lantern ring
- module
- stay cable
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/16—Suspension cables; Cable clamps for suspension cables ; Pre- or post-stressed cables
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D2101/00—Material constitution of bridges
- E01D2101/30—Metal
- E01D2101/32—Metal prestressed
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention provides a stay cable space positioning tensioning construction system and a tensioning construction mode applied to the field of cable tensioning construction, wherein a tensioning motor is arranged as a power source for driving, and meanwhile, an external thread lantern ring and an internal movable lantern ring are driven to move mutually through chain transmission, so that the movable anchor is ejected out by the internal movable lantern ring, the structure is simple, and the operation is stable; through setting up the combination clamp, press from both sides the combination clamp tightly when the activity anchor moves towards the combination clamp direction, and will make the combination clamp loosen when moving towards the one side of keeping away from the composite bay to accomplish the locking and the release to the cable steel strand wires, the combination clamp is provided with interior wiring fluted simultaneously, thereby can make the steel wire of cable steel strand wires be absorbed in the wire casing and strengthen the combination and press from both sides the locking stability to the cable steel strand wires.
Description
Technical Field
The invention relates to the field of stay cable tensioning construction, in particular to a stay cable space positioning tensioning construction system and a tensioning construction mode.
Background
Many bridges in cities are cable bridges, when a bridge is built by one-time frame falling, a cable tensioning stage is a key point and a difficult point in the construction of the bridge, a tensioning scheme is often discussed for many times before tensioning construction, the whole tensioning process has many processes and is long in time consumption, and the final result often cannot achieve the expected purpose.
The team is dedicated to the construction engineering research and the engineering product development of the guy bridge for a long time, products developed according to field investigation and improvement are gradually applied to various large construction projects, mass search of the team is carried out, the conventional guy cable tensioning mode is mainly shown as KR1020140085578A, JPH03120166A and CN108221685B, the guy cable tensioning device disclosed as CN108360820B is particularly representative, the guy cable tensioning construction is realized by driving a connecting nut to rotate through a power device, automatic machinery is used for replacing manpower, labor force is saved, the construction risk is reduced, an operator can be far away from a construction field, the oil pump switch can be remotely controlled, the heavy object striking risk is reduced, and the safety of the operator is ensured. The stretching of a cylinder body of the jack is realized by supplying oil to the jack through an oil pump, the stretching of the cylinder body drives the straight tooth rail to move, the straight tooth rail moves to drive the main gear to rotate through the transmission gear, and finally the connecting nut is driven to realize the tensioning construction of the inhaul cable. The device usually adopts the jack as the main tensioning power source, and because the pipeline of jack needs external cooperation, so lead to the overall structure of device can be comparatively huge and complicated, moreover because when the hydraulic oil of jack is revealed, often can make the tension force produce the error, thereby unable cable reaches due stretch-draw volume, so need develop a stretch-draw system that is applicable to other kinetic energy systems and the simple structure construction of being convenient for.
Disclosure of Invention
The invention aims to provide a stay cable space positioning tensioning construction system and a tensioning construction mode aiming at the defects of the existing cable tensioning system.
In order to overcome the defects of the prior art, the invention adopts the following technical scheme:
a stay cable space positioning tensioning construction system comprises: a mounting frame;
the tensioning device is arranged on the mounting frame and used for tensioning the stay cable steel strand;
the clamping and fixing module is arranged on the tensioning device and used for clamping and locking the stay cable steel strand;
the space positioning vision module is arranged on the tensioning device and used for monitoring the tensioning amount of the stay cable steel strand;
the clamping fixed module comprises a fixed seat, a movable anchor, a combined clamp and a pressure sensor, wherein the movable anchor and the combined clamp are configured to clamp and bind each cable steel strand of the cable through the matching of the movable anchor and the combined clamp, and the pressure sensor is configured to monitor the clamping condition of the clamping fixed module on the cable steel strands;
the tensioning device comprises an ejection module and an input module, wherein the ejection module is configured to push the clamping fixed module to move so as to drive the inhaul cable to move, and the input module is used for inputting a control command;
the ejection module comprises a tensioning motor, a transmission mechanism, a case, an external thread lantern ring, a guide rod and an internal movable lantern ring, the case is provided with a guy cable inlet and a guy cable outlet, the external thread lantern ring is rotatably arranged in the case, the tensioning motor is arranged on the mounting frame and is in transmission connection with the external thread lantern ring through the transmission mechanism, the guide rod is arranged in the case along the direction from the guy cable inlet to the guy cable outlet and penetrates through the internal movable lantern ring, and the outer surface of the internal movable lantern ring is abutted against the external thread lantern ring and is constructed to drive the internal movable lantern ring to slide along the guide rod when the external thread lantern ring rotates;
the space positioning vision module comprises a camera, an illuminating module and an analyzing module, wherein the camera is used for shooting the surface of the inhaul cable and collecting surface images of the inhaul cable, the illuminating module is used for illuminating a shooting object of the camera, the analyzing module is constructed to analyze the displacement of the inhaul cable according to the surface images of the inhaul cable, and the camera, the illuminating module and the analyzing module are all arranged on the inner side of the outer convex ring part of the fixing seat.
Further, the fixing base includes spacing portion of cable and groove installation department, spacing portion of cable is provided with a plurality of through-holes that supply the cable to run through, groove installation department sets up evagination ring portion and inner groovy portion, the bottom of evagination ring portion is provided with the under shed.
Further, the combined clamp comprises a first clamping plate, a connecting portion and a second clamping plate, the first clamping plate is connected with the second clamping plate through the connecting portion, and the first clamping plate and the second clamping plate are configured to clamp the inhaul cable when combined.
Furthermore, the inner surfaces of the first clamping plate and the second clamping plate are respectively provided with a linear groove for the steel wire of the stay cable steel strand to sink into.
Further, the external screw thread lantern ring has set gradually sprocket portion, rotation smooth portion and first extension portion according to the advancing direction of cable, drive mechanism sets up to the chain, the sprocket portion sets up in the outside of quick-witted case and passes through the chain is connected with the drive sprocket transmission that sets up at stretch-draw motor, it passes through the bearing rotation to rotate smooth portion and sets up the cable import at the quick-witted case, and rotates and be provided with the bearing between smooth portion and the quick-witted case, first extension portion sets up the inside at the quick-witted case, the inside of first extension portion is provided with the internal thread.
Furthermore, the inner movable lantern ring is sequentially provided with a second expansion part and an extension part according to the advancing direction of the inhaul cable, the outer surface of the second expansion part is provided with an external thread matched with the internal thread, the extension part extends to the outside of the case through an inhaul cable outlet, a sliding bearing is arranged between the extension part and the case, and the guide rod penetrates through the side wall of the second expansion part along the advancing direction of the inhaul cable.
The tension construction mode of the tension construction system comprises the following steps:
installing a guy cable, respectively installing two ends of the guy cable on the cable tower and the fixed anchor on the main beam, and enabling the downward end of the guy cable to sequentially penetrate through the guy cable limiting part of the fixed seat;
installing a tensioning device, inserting a guy cable into a chain wheel part of an external thread lantern ring of the tensioning device from a guy cable inlet of a case to penetrate into an inner groove part of a fixed seat, simultaneously enabling a chain to penetrate through a lower opening of an external convex ring part, then enabling the tail end of the guy cable to extend out of a guy cable outlet of the case, sequentially penetrating guy cable steel strands of the guy cable through holes of movable anchors placed on the rear side of the case, inserting a combined clamp into the through holes penetrating the guy cable steel strands along the guy cable steel strands to lock the guy cable steel strands, and simultaneously monitoring the pressure between each combined clamp and the movable anchors by a pressure sensor;
the method comprises the following steps of first-stage tensioning, wherein a control command is input into an input module to control a tensioning motor to rotate forwards, the tensioning motor drives an external thread lantern ring to rotate through a transmission mechanism, then the external thread lantern ring drives an internal movable lantern ring which is in threaded connection to slide along a guide rod, meanwhile, a combined clamp is pushed by a movable anchor to sink into a through hole and contract simultaneously so as to clamp a guy cable steel strand tightly, meanwhile, a pressure sensor monitors a pressure value between the combined clamp and the movable anchor, and then a space positioning vision module monitors tensioning displacement when tensioning is carried out, so that the guy cable steel strand is driven by the movable anchor to perform first-stage tensioning;
and second-stage tensioning, wherein a control command is input into the input module to drive the tensioning motor to rotate reversely, so that the external thread lantern ring and the internal movable sleeve are driven by the transmission mechanism to rotate towards the other direction, the internal movable sleeve retreats into the case along the guide rod, then the movable anchor is retreated into the internal movable sleeve ring according to the return direction, the combined clamp sunk into the through hole of the movable anchor is released at the same time, then the movable anchor is followed to lock the stay cable steel strand again, then the tensioning motor rotates forwards to drive the movable anchor and the stay cable steel strand to move again, second-stage tensioning is carried out, and the combined clamp is installed on the fixed anchor to lock the stay cable steel strand after tensioning is completed.
The beneficial effects obtained by the invention are as follows:
the tensioning motor is used as a power source for driving, and the external thread lantern ring and the internal movable lantern ring are driven to move mutually through chain transmission, so that the movable anchor is ejected out by the internal movable lantern ring, the structure is simple, and the operation is stable; through setting up the combination clamp, press from both sides the combination when the activity anchor presss from both sides the direction motion towards the combination and press from both sides tightly, and be about to the combination clamp when moving towards one side of keeping away from the combination frame and loosen, thereby accomplish locking and release to cable steel strand wires, the combination clamp is provided with interior wiring flute profile simultaneously, thereby can make the steel wire of cable steel strand wires sink into the wire casing and strengthen the combination clamp to the locking stability of cable steel strand wires, simultaneously can carry out intelligent monitoring to the locking degree that the combination pressed from both sides through setting up pressure sensor, can carry out intelligent monitoring and control to the volume of stretching through setting up spatial localization vision module, have accurate the control to the volume of stretching, thereby make the tensioning device realize the effect of accurate stretch-draw, through setting ejection module on the mounting bracket, thereby more do benefit to the position of tensioning device and adjust and also more do benefit to carrying and construction simultaneously.
Drawings
The invention will be further understood from the following description in conjunction with the accompanying drawings. The components in the figures are not necessarily to scale, emphasis instead being placed upon illustrating the principles of the embodiments. Like reference numerals designate corresponding parts throughout the different views.
FIG. 1 is a schematic view of the present invention.
Fig. 2 is a schematic structural view of the combination clip of the present invention.
Fig. 3 is a schematic structural view of the combination clip of the present invention.
Fig. 4 is a schematic structural view of the first splint of the present invention.
Fig. 5 is a schematic view of the internal structure of the present invention.
FIG. 6 is a diagram illustrating an analysis effect of the spatial orientation vision module according to the present invention.
In the figure: the device comprises a mounting frame 1, a tensioning device 2, a tensioning motor 21, a transmission mechanism 22, a case 23, an external thread collar 24, a guide rod 25, an internal movable collar 26, a clamping fixed module, a fixed seat 31, a movable anchor 32, a combined clamp 33, a first clamping plate 331, a connecting part 332, a second clamping plate 333, a space positioning vision module 4, a camera 41, an illumination module 42 and an analysis module 43.
Detailed Description
In order to make the objects and advantages of the present invention more apparent, the present invention will be further described in detail with reference to the following embodiments; it should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. Other systems, methods, and/or features of the present embodiments will become apparent to those skilled in the art upon review of the following detailed description. It is intended that all such additional systems, methods, features and advantages be included within this description, be within the scope of the invention, and be protected by the accompanying claims. Additional features of the disclosed embodiments are described in, and will be apparent from, the detailed description that follows.
The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar components; in the description of the present invention, it should be understood that if there is an orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", etc., based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of description, but it is not indicated or implied that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and are not to be construed as limitations of the present patent, and specific meanings of the terms may be understood by those skilled in the art according to specific situations.
The first embodiment.
As shown in fig. 1, a stayed cable space positioning tensioning construction system includes: a mounting frame;
the clamping and fixing module is arranged on the tensioning device and used for clamping and locking the stay cable steel strand;
the tensioning device is arranged on the mounting frame and used for tensioning the stay cable steel strand;
the space positioning vision module is arranged on the tensioning device and used for monitoring the tensioning amount of the stay cable steel strand;
the clamping fixed module comprises a fixed seat, a movable anchor, a combined clamp and a pressure sensor, wherein the movable anchor and the combined clamp are configured to clamp and bind each cable steel strand of the cable through the matching of the movable anchor and the combined clamp, and the pressure sensor is configured to monitor the clamping condition of the clamping fixed module on the cable steel strands;
the tensioning device comprises an ejection module and an input module, wherein the ejection module is configured to push the clamping fixed module to move so as to drive the inhaul cable to move, and the input module is used for inputting a control command;
the ejection module comprises a tensioning motor, a transmission mechanism, a case, an external thread lantern ring, a guide rod and an internal movable lantern ring, the case is provided with a guy cable inlet and a guy cable outlet, the external thread lantern ring is rotatably arranged in the case, the tensioning motor is arranged on the mounting frame and is in transmission connection with the external thread lantern ring through the transmission mechanism, the guide rod is arranged in the case along the direction from the guy cable inlet to the guy cable outlet and is arranged in a way that the guide rod penetrates through the internal movable lantern ring, and the outer surface of the internal movable lantern ring is abutted to the external thread lantern ring and is constructed in a way that the internal movable lantern ring is driven to slide along the guide rod when the external thread lantern ring rotates;
the space positioning vision module comprises a camera, an illumination module and an analysis module, wherein the camera is used for shooting the surface of the inhaul cable and collecting the surface image of the inhaul cable, the illumination module is used for illuminating a shooting object of the camera, the analysis module is used for analyzing the displacement of the inhaul cable according to the surface image of each inhaul cable, and the camera, the illumination module and the analysis module are all arranged on the inner side of the outer convex ring part of the fixed seat;
the fixing seat comprises a stay cable limiting part and a groove mounting part, the stay cable limiting part is provided with a plurality of through holes for the stay cable to penetrate through, the groove mounting part is provided with an outer convex ring part and an inner groove part, and the bottom of the outer convex ring part is provided with a lower opening;
the combined clamp comprises a first clamping plate, a connecting part and a second clamping plate, wherein the first clamping plate is connected with the second clamping plate through the connecting part, and the first clamping plate and the second clamping plate are configured to clamp the inhaul cable when combined;
linear grooves for allowing steel wires of the stay cable steel strand to sink are formed in the inner surfaces of the first clamping plate and the second clamping plate;
the first clamping plate and the second clamping plate are both provided with a shape with gradually reduced cross-sectional area and are configured to be tightened when the first clamping plate and the second clamping plate penetrate into the through hole of the movable anchor;
the external thread lantern ring and the internal movable lantern ring are provided with hollow channels for the stay cable to pass through;
the external thread lantern ring is sequentially provided with a chain wheel part, a rotating smooth part and a first expansion part according to the advancing direction of the inhaul cable, the transmission mechanism is arranged to be a chain, the chain wheel part is arranged on the outer side of the case and is in transmission connection with a driving chain wheel arranged on the tensioning motor through the chain, the rotating smooth part is rotatably arranged at an inhaul cable inlet of the case through a bearing, a bearing is arranged between the rotating smooth part and the case, the first expansion part is arranged inside the case, and internal threads are arranged inside the first expansion part;
the inner movable lantern ring is sequentially provided with a second expansion part and an extension part according to the advancing direction of the inhaul cable, the outer surface of the second expansion part is provided with an external thread matched with the internal thread, the extension part extends to the outside of the case through an inhaul cable outlet, a sliding bearing is arranged between the extension part and the case, and the guide rod penetrates through the side wall of the second expansion part along the advancing direction of the inhaul cable.
Second embodiment, the present embodiment is further described in the foregoing embodiments, it should be understood that the present embodiment includes all the technical features described above and is further described in detail:
a stay cable space positioning tensioning construction system comprises: a mounting frame;
the tensioning device is arranged on the mounting frame and used for tensioning the stay cable steel strand;
the clamping and fixing module is arranged on the tensioning device and used for clamping and locking the stay cable steel strand;
the space positioning vision module is arranged on the tensioning device and used for monitoring the tensioning amount of the stay cable steel strand;
the clamping fixed module comprises a fixed seat, a movable anchor, a combined clamp and a pressure sensor, wherein the movable anchor and the combined clamp are configured to clamp and bind each cable steel strand of the cable through the matching of the movable anchor and the combined clamp, and the pressure sensor is configured to monitor the clamping condition of the clamping fixed module on the cable steel strands;
the tensioning device comprises an ejection module and an input module, wherein the ejection module is configured to push the fixed clamping module to move so as to drive the inhaul cable to move, and the input module is used for inputting a control command;
the ejection module comprises a tensioning motor, a transmission mechanism, a case, an external thread lantern ring, a guide rod and an internal movable lantern ring, the case is provided with a guy cable inlet and a guy cable outlet, the external thread lantern ring is rotatably arranged in the case, the tensioning motor is arranged on the mounting frame and is in transmission connection with the external thread lantern ring through the transmission mechanism, the guide rod is arranged in the case along the direction from the guy cable inlet to the guy cable outlet and penetrates through the internal movable lantern ring, and the outer surface of the internal movable lantern ring is abutted against the external thread lantern ring and is constructed to drive the internal movable lantern ring to slide along the guide rod when the external thread lantern ring rotates;
the cable tensioning device comprises an external thread lantern ring, an internal movable lantern ring, a tensioning motor, a chain wheel, a transmission mechanism, a first expansion part, a guide rod and a guide rod, wherein the external thread lantern ring and the internal movable lantern ring are provided with hollow channels for a tensioning cable to pass through, the external thread lantern ring is sequentially provided with the chain wheel part, the rotating smooth part and the first expansion part according to the advancing direction of the tensioning cable, the transmission mechanism is arranged as a chain, the chain wheel part is arranged on the outer side of a case and is in transmission connection with a driving chain wheel arranged on the tensioning motor through the chain, the rotating smooth part is rotatably arranged at a tensioning cable inlet of the case through a bearing, the first expansion part is arranged inside the case, internal threads are arranged inside the first expansion part, the internal movable lantern ring is sequentially provided with a second expansion part and an extension part according to the advancing direction of the tensioning cable, external threads matched with the internal threads are arranged on the outer surface of the second expansion part, the extension part extends to the outside of the case through a tensioning cable outlet, a sliding bearing is arranged between the extension part and the case, and the guide rod penetrates through the side wall of the second expansion part along the advancing direction of the tensioning cable;
the fixing seat comprises a stay cable limiting part and a groove mounting part, the stay cable limiting part is provided with a plurality of through holes for the stay cable to penetrate through, the groove mounting part is provided with an outer convex ring part and an inner groove part, and the bottom of the outer convex ring part is provided with a lower opening;
the combined clamp comprises a first clamping plate, a connecting part and a second clamping plate, wherein the first clamping plate is connected with the second clamping plate through the connecting part, and the first clamping plate and the second clamping plate are configured to clamp the inhaul cable when combined;
linear grooves for allowing steel wires of the stay cable steel strand to sink are formed in the inner surfaces of the first clamping plate and the second clamping plate;
the first clamping plate and the second clamping plate are both provided with a shape with gradually reduced cross-sectional area and are configured to be tightened when the first clamping plate and the second clamping plate penetrate into the through hole of the movable anchor;
the space positioning vision module comprises a camera, an illumination module and an analysis module, wherein the camera is used for shooting the surface of the inhaul cable and collecting the surface image of the inhaul cable, the illumination module is used for illuminating a shooting object of the camera, the analysis module is used for analyzing the displacement of the inhaul cable according to the surface image of each inhaul cable, and the camera, the illumination module and the analysis module are all arranged on the inner side of the outer convex ring part of the fixed seat;
the tensioning motor is used as a power source for driving, and the external thread lantern ring and the internal movable lantern ring are driven to move mutually through chain transmission, so that the movable anchor is ejected out by the internal movable lantern ring, the structure is simple, and the operation is stable; through setting up the combination clamp, press from both sides the combination clamp tightly when the movable anchor presss from both sides the direction motion towards the combination, and be about to the combination clamp loosen when moving towards one side of keeping away from the combination frame, thereby accomplish locking and release to cable steel strand wires, the combination clamp is provided with interior wiring flute simultaneously, thereby can make cable steel strand wires sink into the wire casing and strengthen the combination clamp to cable steel strand wires's locking stability, simultaneously can carry out intelligent monitoring to the locking degree that the combination pressed from both sides through setting up pressure sensor, can carry out intelligent monitoring and control to the volume through setting up spatial localization vision module, it has accurate control to the volume of stretching, thereby make the tensioning device realize the effect of accurate stretch-draw, through setting ejection module on the mounting bracket, thereby more do benefit to carrying and construction when adjusting tensioning device's position.
Third embodiment, the present embodiment is further described in the foregoing embodiments, it should be understood that the present embodiment includes all the technical features described above and is further described in detail:
as further shown in fig. 2 to 6, a stay cable space positioning and tensioning construction system includes: a mounting frame;
the tensioning device is arranged on the mounting frame and used for tensioning the stay cable steel strand;
the clamping and fixing module is arranged on the tensioning device and used for clamping and locking the stay cable steel strand;
the spatial positioning vision module is arranged on the tensioning device and is used for monitoring the tensioning amount of the stay cable steel strand;
the clamping fixed module comprises a fixed seat, a movable anchor, a combined clamp and a pressure sensor, wherein the movable anchor and the combined clamp are configured to clamp and bind each cable steel strand of the cable through the matching of the movable anchor and the combined clamp, and the pressure sensor is configured to monitor the clamping condition of the clamping fixed module on the cable steel strands;
the fixing seat comprises a stay cable limiting part and a groove mounting part, the stay cable limiting part is provided with a plurality of through holes for the stay cable to penetrate through, the groove mounting part is provided with an outer convex ring part and an inner groove part, and the bottom of the outer convex ring part is provided with a lower opening;
the combined clamp comprises a first clamping plate, a connecting part and a second clamping plate, wherein the first clamping plate is connected with the second clamping plate through the connecting part, and the first clamping plate and the second clamping plate are configured to clamp the inhaul cable when combined;
linear grooves for allowing steel wires of the stay cable steel strands to sink into are formed in the inner surfaces of the first clamping plate and the second clamping plate;
the first clamping plate and the second clamping plate are both provided with a shape with gradually reduced cross-sectional area and are configured to be more tightened when the first clamping plate and the second clamping plate penetrate into the through hole of the movable anchor;
the tensioning device comprises an ejection module and an input module, wherein the ejection module is configured to push the clamping fixed module to move so as to drive the inhaul cable to move, and the input module is used for inputting a control command;
the ejection module comprises a tensioning motor, a transmission mechanism, a case, an external thread lantern ring, a guide rod and an internal movable lantern ring, the case is provided with a guy cable inlet and a guy cable outlet, the external thread lantern ring is rotatably arranged in the case, the tensioning motor is arranged on the mounting frame and is in transmission connection with the external thread lantern ring through the transmission mechanism, the guide rod is arranged in the case along the direction from the guy cable inlet to the guy cable outlet and penetrates through the internal movable lantern ring, and the outer surface of the internal movable lantern ring is abutted against the external thread lantern ring and is constructed to drive the internal movable lantern ring to slide along the guide rod when the external thread lantern ring rotates;
the cable tensioning device comprises an external thread lantern ring, an internal movable lantern ring, a tensioning motor, a chain wheel, a transmission mechanism, a first expansion part, a guide rod and a guide rod, wherein the external thread lantern ring and the internal movable lantern ring are provided with hollow channels for a tensioning cable to pass through, the external thread lantern ring is sequentially provided with the chain wheel part, the rotating smooth part and the first expansion part according to the advancing direction of the tensioning cable, the transmission mechanism is arranged as a chain, the chain wheel part is arranged on the outer side of a case and is in transmission connection with a driving chain wheel arranged on the tensioning motor through the chain, the rotating smooth part is rotatably arranged at a tensioning cable inlet of the case through a bearing, the first expansion part is arranged inside the case, internal threads are arranged inside the first expansion part, the internal movable lantern ring is sequentially provided with a second expansion part and an extension part according to the advancing direction of the tensioning cable, external threads matched with the internal threads are arranged on the outer surface of the second expansion part, the extension part extends to the outside of the case through a tensioning cable outlet, a sliding bearing is arranged between the extension part and the case, and the guide rod penetrates through the side wall of the second expansion part along the advancing direction of the tensioning cable;
the space positioning vision module comprises a camera, an illumination module and an analysis module, wherein the camera is used for shooting the surface of the stay cable and collecting images of the surface of the stay cable, the illumination module is used for illuminating a shooting object of the camera, the analysis module is used for analyzing the displacement of the stay cable according to the images of the surface of each stay cable, and the camera, the illumination module and the analysis module are all arranged on the inner side of the outer convex ring part of the fixing seat;
the tensioning device is characterized by further comprising a moving module and an angle adjusting module, wherein the moving module is arranged at the bottom of the mounting rack and is configured to drive the mounting rack to move, the mounting rack is of a scissors lifting rack structure so as to drive the tensioning device to lift and adjust the height of the tensioning device, and the angle adjusting module is arranged at the upper part of the mounting rack and is configured to adjust and control the inclination angle of the tensioning device;
a tension construction method comprises the following steps:
installing a guy cable, respectively installing two ends of the guy cable on the cable tower and the fixed anchor on the main beam, and enabling the downward end of the guy cable to sequentially penetrate through the guy cable limiting part of the fixed seat;
installing a tensioning device, inserting a guy cable into a chain wheel part of an external thread lantern ring of the tensioning device from a guy cable inlet of a case to penetrate into an inner groove part of a fixed seat, simultaneously enabling a chain to penetrate through a lower opening of an external convex ring part, then enabling the tail end of the guy cable to extend out of a guy cable outlet of the case, sequentially penetrating guy cable steel strands of the guy cable through holes of movable anchors placed on the rear side of the case, inserting a combined clamp into the through holes penetrating the guy cable steel strands along the guy cable steel strands to lock the guy cable steel strands, and simultaneously monitoring the pressure between each combined clamp and the movable anchors by a pressure sensor;
the pressure sensor monitors the pressure between each combined clamp and the movable anchor, and in the embodiment, when the locking pressure value monitored by the pressure sensor is 60-80Mpa, the initial locking is successful;
s3, performing primary tensioning, namely inputting a control command to an input module to control a tensioning motor to rotate forwards, driving an external thread lantern ring to rotate through a transmission mechanism, driving an internal movable lantern ring in threaded connection to slide along a guide rod by the external thread lantern ring, sinking into a through hole under the pushing of a movable anchor and contracting at the same time to clamp the stay cable steel strand, monitoring a pressure value between the combined clamp and the movable anchor by a pressure sensor, and monitoring a tensioning displacement by a space positioning vision module during tensioning operation so as to enable the stay cable steel strand to perform primary tensioning along with the driving of the movable anchor;
the space positioning vision module monitors the tensioning displacement, and the specific monitoring mode is as follows: the method comprises the steps that a camera shoots an image of a guy cable steel strand when the guy cable steel strand is not tensioned to generate an initial image, the initial image is sent to an analysis module, the analysis module divides the initial image into an upper area, a middle area and a lower area, the upper area, the middle area and the lower area are sequentially divided into the upper area, the middle area and the lower area according to the moving direction of the image, the analysis module searches for a characteristic point in the upper area of the initial image, marks and positions the guy cable characteristic point, the camera continuously shoots the moving guy cable steel strand when the guy cable steel strand is tensioned to move, the analysis module counts the displacement of the characteristic point after the characteristic point moves to the lower area, the analysis module searches for another characteristic point in the upper area again, the displacement of the other characteristic point is continuously counted, the tracked continuity is kept until a tensioning motor stops, and finally the analysis module sums the displacements of the characteristic points to obtain a tensioning elongation value;
in the embodiment, before tensioning, the tensioning is started after a tensioning value is input through the input module, so that the tensioning motor is automatically stopped after the tensioning amount of the stay cable steel strand reaches the tensioning value by the tensioning device;
s4, second-stage tensioning, control instructions are input into the input module to drive the tensioning motor to rotate reversely, the transmission mechanism drives the external thread lantern ring and the inner movable sleeve to rotate towards the other direction, the inner movable sleeve retreats into the case along the guide rod, then the movable anchor is retreated into the inner movable sleeve according to the return direction, the combined clamp sunk into the through hole of the movable anchor is released, then the movable anchor is locked again along with the movable anchor, then the tensioning motor rotates forwards to drive the movable anchor and the cable steel strand to move again, second-stage tensioning is carried out, and the combined clamp is installed on the fixed anchor to lock the cable steel strand after tensioning is completed.
Although the invention has been described above with reference to various embodiments, it should be understood that many changes and modifications may be made without departing from the scope of the invention. That is, the methods, systems, and devices discussed above are examples. Various configurations may omit, substitute, or add various procedures or components as appropriate. For example, in alternative configurations, the methods may be performed in an order different than described, and/or various components may be added, omitted, and/or combined. Moreover, features described with respect to certain configurations may be combined in various other configurations, as different aspects and elements of the configurations may be combined in a similar manner. Further, elements therein may be updated as technology evolves, i.e., many elements are examples and do not limit the scope of the disclosure or claims.
Specific details are given in the description to provide a thorough understanding of example configurations, including implementations. However, configurations may be practiced without these specific details, for example, well-known circuits, processes, algorithms, structures, and techniques have been shown without unnecessary detail in order to avoid obscuring the configurations. This description provides example configurations only, and does not limit the scope, applicability, or configuration of the claims. Rather, the foregoing description of the configurations will provide those skilled in the art with an enabling description for implementing the described techniques. Various changes may be made in the function and arrangement of elements without departing from the spirit or scope of the disclosure.
In conclusion, it is intended that the foregoing detailed description be regarded as illustrative rather than limiting, and that it be understood that these examples are illustrative only and are not intended to limit the scope of the invention. After reading the description of the present invention, the skilled person can make various changes or modifications to the invention, and these equivalent changes and modifications also fall into the scope of the invention defined by the claims.
Claims (7)
1. The utility model provides a suspension cable space positioning stretch-draw construction system which characterized in that includes: a mounting frame;
the tensioning device is arranged on the mounting frame and used for tensioning the stay cable steel strand;
the clamping and fixing module is arranged on the tensioning device and used for clamping and locking the stay cable steel strand;
the space positioning vision module is arranged on the tensioning device and used for monitoring the tensioning amount of the stay cable steel strand;
the clamping fixed module comprises a fixed seat, a movable anchor, a combined clamp and a pressure sensor, wherein the movable anchor and the combined clamp are configured to clamp and bind each cable steel strand of the cable through the matching of the movable anchor and the combined clamp, and the pressure sensor is configured to monitor the clamping condition of the clamping fixed module on the cable steel strands;
the tensioning device comprises an ejection module and an input module, wherein the ejection module is configured to push the clamping fixed module to move so as to drive the inhaul cable to move, and the input module is used for inputting a control command;
the ejection module comprises a tensioning motor, a transmission mechanism, a case, an external thread lantern ring, a guide rod and an internal movable lantern ring, the case is provided with a guy cable inlet and a guy cable outlet, the external thread lantern ring is rotatably arranged in the case, the tensioning motor is arranged on the mounting frame and is in transmission connection with the external thread lantern ring through the transmission mechanism, the guide rod is arranged in the case along the direction from the guy cable inlet to the guy cable outlet and penetrates through the internal movable lantern ring, and the outer surface of the internal movable lantern ring is abutted against the external thread lantern ring and is constructed to drive the internal movable lantern ring to slide along the guide rod when the external thread lantern ring rotates;
the space positioning vision module comprises a camera, an illumination module and an analysis module, wherein the camera is used for shooting the surface of the stay cable and collecting surface images of the stay cable, the illumination module is used for illuminating a shooting object of the camera, the analysis module is constructed to analyze the displacement of the stay cable according to the surface images of the stay cable, and the camera, the illumination module and the analysis module are all arranged on the inner side of the outer convex ring part of the fixing seat.
2. A construction system for spatial orientation and tension of a stay cable according to claim 1, wherein the fixing base comprises a stay cable limiting portion and a groove mounting portion, the stay cable limiting portion is provided with a plurality of through holes for the stay cable to pass through, the groove mounting portion is provided with an outer convex ring portion and an inner concave groove portion, and the bottom of the outer convex ring portion is provided with a lower opening.
3. A stay cable spatial orientation tensioning construction system according to claim 1 wherein the combination clamp comprises a first clamp plate, a connecting portion and a second clamp plate, the first clamp plate being connected to the second clamp plate by the connecting portion, the first and second clamp plates being configured to clamp the cable when combined.
4. The stayed cable space positioning and tensioning construction system as claimed in claim 3, wherein the inner surfaces of the first clamping plate and the second clamping plate are provided with linear grooves for the steel wires of the stayed cable steel strands to sink into.
5. The construction system of claim 1, wherein the external thread collar is sequentially provided with a sprocket portion, a rotating smooth portion and a first extending portion according to a traveling direction of the cable, the transmission mechanism is configured as a chain, the sprocket portion is disposed on an outer side of the housing and is in transmission connection with a driving sprocket disposed on the tensioning motor through the chain, the rotating smooth portion rotates a cable inlet disposed on the housing through a bearing, a bearing is disposed between the rotating smooth portion and the housing, the first extending portion is disposed inside the housing, and an internal thread is disposed inside the first extending portion.
6. The stayed cable spatial positioning and tensioning construction system according to claim 5, wherein the inner movable lantern ring is sequentially provided with a second expansion part and an extension part according to the travelling direction of the stayed cable, the outer surface of the second expansion part is provided with an external thread matched with the internal thread, the extension part extends to the outside of the case through the outlet of the stayed cable, a sliding bearing is arranged between the extension part and the case, and the guide rod penetrates through the side wall of the second expansion part along the travelling direction of the stayed cable.
7. A tension construction method of a tension construction system according to any one of claims 1 to 6, comprising:
s1, installing a stay cable, respectively installing two ends of the stay cable on a cable tower and a fixed anchor on a main beam, and sequentially penetrating the downward end of the stay cable through a stay cable limiting part of a fixed seat;
s2, installing a tensioning device, inserting a stay cable into a chain wheel part of an external thread lantern ring of the tensioning device from a stay cable inlet of a case to penetrate into an inner groove part of a fixed seat, enabling a chain to penetrate through a lower opening of an external convex ring part, enabling the tail end of the stay cable to extend out of a stay cable outlet of the case, sequentially penetrating stay cable steel strands of the stay cable through holes of movable anchors arranged on the rear side of the case, inserting combination clamps into the through holes penetrating the stay cable steel strands along the stay cable steel strands to lock the stay cable steel strands, and monitoring the pressure between the combination clamps and the movable anchors by a pressure sensor;
s3, first-stage tensioning, namely, inputting a control command to an input module to control a tensioning motor to rotate forwards, driving an external thread lantern ring to rotate through a transmission mechanism, driving an internal movable lantern ring in threaded connection to slide along a guide rod by the external thread lantern ring, sinking into a through hole under the pushing of a movable anchor and contracting at the same time to clamp the inhaul cable steel strand, monitoring a pressure value between the combined clamp and the movable anchor by a pressure sensor, and monitoring the tensioning displacement by a space positioning vision module during tensioning operation, so that the inhaul cable steel strand is driven by the movable anchor to perform first-stage tensioning;
s4, second-stage tensioning, control instructions are input into the input module to drive the tensioning motor to rotate reversely, the transmission mechanism drives the external thread lantern ring and the inner movable sleeve to rotate towards the other direction, the inner movable sleeve retreats into the case along the guide rod, then the movable anchor is retreated into the inner movable sleeve according to the return direction, the combined clamp sunk into the through hole of the movable anchor is released, then the movable anchor is locked again along with the movable anchor, then the tensioning motor rotates forwards to drive the movable anchor and the cable steel strand to move again, second-stage tensioning is carried out, and the combined clamp is installed on the fixed anchor to lock the cable steel strand after tensioning is completed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110697511.3A CN113652965B (en) | 2021-06-23 | 2021-06-23 | Stay cable space positioning tensioning construction system and tensioning construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110697511.3A CN113652965B (en) | 2021-06-23 | 2021-06-23 | Stay cable space positioning tensioning construction system and tensioning construction method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113652965A CN113652965A (en) | 2021-11-16 |
| CN113652965B true CN113652965B (en) | 2023-04-14 |
Family
ID=78477087
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110697511.3A Active CN113652965B (en) | 2021-06-23 | 2021-06-23 | Stay cable space positioning tensioning construction system and tensioning construction method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113652965B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114141447B (en) * | 2021-12-03 | 2023-08-15 | 江西省萍乡市南坑高压电瓷有限公司 | Fastening suite of porcelain insulator |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0010556B1 (en) * | 1978-10-30 | 1983-03-30 | Ingenieursbureau voor Systemen en Octrooien "SPANSTAAL" B.V. | Method and device for manufacturing a road surface, a runway or the like |
| US4961546A (en) * | 1989-09-29 | 1990-10-09 | Platt Saco Lowell Corporation | Strand tension compensator |
| CN103967008A (en) * | 2014-04-04 | 2014-08-06 | 山东正元建设工程有限责任公司 | Clip type pre-stress anchor cable active clip feeding and tension locking device and use method |
| CN204475190U (en) * | 2015-02-10 | 2015-07-15 | 杭州富锚机械有限公司 | A kind of low retraction ground tackle tensioning equipment |
| CN109457614A (en) * | 2018-09-30 | 2019-03-12 | 柳州欧维姆结构检测技术有限公司 | Parallel steel stranded wire stayed Cable Construction Suo Li uniformity monitors system and construction method |
| CN110725210B (en) * | 2019-05-01 | 2021-09-17 | 河南交院工程技术集团有限公司 | Inhaul cable stepping tensioning construction method and tensioning equipment |
| CN111794520B (en) * | 2020-06-17 | 2022-05-31 | 安徽金星预应力工程技术有限公司 | Steel strand prestress tensioning device and method |
| CN213013960U (en) * | 2020-08-05 | 2021-04-20 | 中交一公局集团有限公司 | Stay cable tensioning device in limited space |
| CN112761069B (en) * | 2021-01-21 | 2022-05-10 | 郑州市公路工程公司 | Method for fixing bridge cable |
-
2021
- 2021-06-23 CN CN202110697511.3A patent/CN113652965B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN113652965A (en) | 2021-11-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN113652965B (en) | Stay cable space positioning tensioning construction system and tensioning construction method | |
| CN110686978B (en) | Bridge inhaul cable stretching resonance detection device | |
| CN101922298A (en) | Self-walking shield translation station-crossing system | |
| CN102581603A (en) | Manipulator | |
| CN1280154C (en) | Method for mounting ship stern shaft | |
| CN206941403U (en) | Steel wire rope continuously tensioning device | |
| CN203045279U (en) | Pin penetrating device | |
| CN202339302U (en) | Anti-tear capability testing device of mining conveyer belt | |
| CN108406289B (en) | Moment loading device | |
| CN210507166U (en) | Steel box girder stepping type multi-point pushing construction device | |
| CN106945170A (en) | Pre-tensioning system produces the steel bar tensioning device of high speed railway fragments-free track slab | |
| CN102529904B (en) | Pulling tower for automobile metal plate maintenance and stretching method thereof | |
| CN106393056B (en) | A kind of power distribution cabinet mounting robot | |
| CN110159321A (en) | A kind of tunnel arch fitting machine slipping mechanism | |
| CN211490196U (en) | Double-guide-rod telescopic mechanism for automobile equipment | |
| CN110700095A (en) | Stay cable anchoring traction device of large-span cable-stayed bridge and traction construction method thereof | |
| CN112857731A (en) | Positioning and tensioning device between wind tunnel sections | |
| CN211312198U (en) | Stay cable anchoring traction device of large-span cable-stayed bridge | |
| CN216379179U (en) | Bridge construction is with hanging basket convenient to loading and unloading | |
| CN219389559U (en) | Tunnel lighting device | |
| CN215172836U (en) | Quick-mounting type comprehensive pipe rack support | |
| CN1785792A (en) | Method and device for moving heavy object | |
| CN218436649U (en) | T beam-ends mould demolishs device | |
| CN220084348U (en) | Automobile tubular part detection tool | |
| CN220854412U (en) | Steel wire rope tension testing device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: No.807, Qiancheng community, Shangma street, Chengyang District, Qingdao City, Shandong Province Applicant after: China Railway Construction Group No.2 Construction Co.,Ltd. Applicant after: China Railway Construction Engineering Group Address before: No.807, Qiancheng community, Shangma street, Chengyang District, Qingdao City, Shandong Province Applicant before: CHINA RAILWAY CONSTRUCTION ENGINEERING GROUP SHANDONG Co.,Ltd. Applicant before: China Railway Construction Engineering Group |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |